FR2459680A2 - REACTOR WITH BUCKLES FOR CHEMICAL REACTIONS AND THE LIKE - Google Patents

Abstract

LOOP REACTOR FOR CHEMICAL AND SIMILAR REACTIONS. THE LOOP REACTOR 1 BEING MOUNTED HORIZONTALLY, A FILLING TUBING 8 IS PROVIDED AT THE UPPER PART OF THE ENCLOSURE AND, OUTSIDE THE REACTOR ENCLOSURE, A CIRCULATION PUMP 11 IS CONNECTED TO THE OUTLET TUBE 10, WHICH IS IN COMMUNICATION, THROUGH A TUBE 13, ON THE ONE HAND WITH THE INLET OF LIQUID 14 AND, ON THE OTHER HAND, WITH THE TAPPING DEVICE 15, 16. SUCH REACTOR IS EFFECTIVE FOR MIXING SOLIDS WITH LIQUIDS.

Description

The invention relates to a loop reactor according to the patent 76 10

  888. Reactors of this structure are mainly intended for

to the mixture of liquid materials.

  Solids and liquids, for example during the preparation

  Sugar solution is presently mixed in a stirring device. This is usually a vessel in which a propeller stirrer is rotated. Since in this case the solids are plated on the wall of the tank under the effect of the centrifugal force, the mixing process is long and not sufficiently intimate. The contents of the tank

  must be emptied each time and the tank be recharged. The function

  discontinuous stirring system is reflected, during the

  manufacturing, by an undesirable waste of time.

  The problem underlying the invention is to develop a device in which the mixture of solids and liquids

  is done quickly and intensively.

  In its main problem is solved according to the invention through the use of a loop reactor according to the patent 76 10 888

  already proven to be extremely effective for the blending of

  liquids. For the mixing of solids with liquids, the invention provides a loop reactor having a cylindrical reactor shell, a steering tube concentrically disposed thereto and provided with a hollow ring which is in communication with both mixing chamber through an opening in the outer casing of the head tube and, secondly, with the reactor outlet tube through at least one other opening at the end of the head tube, a liquid inlet arranged concentrically to the opposite end of the steering tube and means for mixing the liquid according to the patent 75 10 888, which has the particularity

  that the loop reactor, being mounted horizontally, a tubular

  The filling lure is arranged at the top of the enclosure.

  veloppe and that, outside the reactor casing, a fuel pump

  circulation is connected to the output tube which is in communication with

  tion, through a tube, on the one hand with the admission of

  liquid and, on the other hand, with the withdrawal device. Preferably

  A filling level indicator is provided on the filler neck which is controlled by the draw-off device. The invention also provides a method for mixing solids with liquids which involves the use of such a reactor

  loops, and according to which, preferably, the materials are introduced

  Contoured in the circulating mixture in the filled reactor casing and the mixture is pumped off, is partly

  injected into the reactor body and is partially withdrawn.

  The use of the loop reactor according to the invention also has the advantage that solid and liquid materials can

  be fed continuously into the reaction vessel.

  The drawing shows a side view, partially in section,

  of an embodiment of a loop reactor according to the invention.

tion.

  In the cylindrical reaction vessel 1 is housed concentrically

  the steering tube 2 which, over part of its double-walled length, is constituted by a hollow ring 5 with an outer wall 3 and an inner wall 4, the end of the outer wall forms with the inner wall an opening 6 At the other end of the tube directing tubes 7 lead to the outlet 10. On the upper edge of the tank is arranged a filling pipe 8, preferably for solids, in which opens a tube 9 for liquids. The circulation pump 11 also on the upper face of the tank is in communication with the outlet 10 via the suction tube 12 and with the injection nozzle 14 and the tank 1 via the pressure tube 13. outlet tube 15, in which is inserted a control valve 16 coupled to a level indicator 17 placed in the filler neck 8, is placed in connection with the pressure tube 13,

  A valve 18 is intended for emptying the tank.

  Once the reactor has been filled, the circulation pump 11 ensures an intense circulation of the quantity of material charged through the

  reactor and therefore an intimate mixture. As soon as the

  finished product is withdrawn through the valve 16, the indica-

  level 17 so that the products to be blended are

  delivered to the reactor in an amount corresponding to the

ge of the finished product.

Claims (3)

  1. Loop reactor comprising a cylindrical reactor shell, a steering tube concentrically disposed thereon and provided with a hollow ring which is in communication, on the one hand, with the mixing chamber by an opening in the outer casing of the director tube and, on the other handwith the reactor outlet tube by at least one other opening at the end of the director tube, a liquid inlet arranged concentrically at the opposite end of the director tube and means for the stirring of the liquid according to the patent 75 10 888, characterized in that, the loop reactor (1) being mounted horizontally, a filler neck (8) is arranged at the upper part of the nipple   and that, outside the reactor casing, a circulation pump   tion (11) is connected to the outlet tube (10), which is in communication, via a tube (13), on the one hand with the liquid inlet (14) and on the other hand with the withdrawal device (15, 16) o 2. loop reactor according to claim 1, characterized in that on the filler pipe (8) is arranged an indicator   level (17) slaved to the withdrawal device (15, 16).   3. Use of the loop reactor according to claim 1 or   2 for mixing solids with liquids.   Mixing process according to Claim 3, characterized in that the substances are introduced continuously into the circulating mixture in the filled reactor casing and that the mixture   is pumped off, is partly injected into the body of the reaction and is partly withdrawn.